Shuttle-driving mechanism for sewing-machines.



n med M9472?, 1901.

Patentedreb.- I l, |902.

1%.. `A lnmmmnm I IIIIIIIIIIIIIIIIM.

l ulgumungnw i I MII IIH Il l No. 692,842'. rammed Feb, n, |902; w. c. mae.

SHUTTLE'DRIVING'MEGHANISM FOR SEWING MACHINES. (Application l'ed May 27, 1901.)

(No model.) 2 shgefsfsheet 2.

'ma sonal: mns co.V Pnm'aL'lmo., wAsMmoToN. D, c.

UNITED STATES PATENT EEiCE.

WILLIAM C. FREE, OF CHICAGO, ILLINOIS.

SHUTTLE-DRIVING MECHANISIVI FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 692,842, dated February 11, 1902. Application filed May 27,1901. Serial No. 62,154. (No model.)

To @ZZ whom t may concern,.-

1 Be it known that I, WILLIAM C. FREE, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Shuttle-Driving Mechanisms, of which thefollowing is a specifica-A tion.

My invention relates specifically to mechanism for driving the shuttles of sewing-machines.

Its object is the production of a simply and compactly constructed and easily-operated mechanism for driving the shuttles Vof such machines by oscillation; and it consists of certain new and useful `features of Aconstrucv tion and combinations of parts especially devised for those ends, all as hereinafter fully described, and specifically pointed out in the claim.

Referring to the accompanying drawings, which form a part of this specification, Figure l is a bottom plan View of a sewing-machine provided with my improvements. Fig. 2 is a section at the dotted line 2 2 in Fig. l of parts there shown. Fig. 3 is a side elevation of the shuttle-driving mechanism shown in Fig. l. Fig. 1.1. is a section at the dotted line 4 4 in Fig. 8 of parts there shown. Figs.

5 and 6 are bottom plan views of the shuttle driving mechanism, showing the positions the parts thereof assume when the shuttlecarrier is at the two extremes of itstravel. Fig. 7 is an endview of the gimbal-ring'and a cross-section of the driving-shaft of the shuttle-driving mechanism.l

Like letters of reference indicate corresponding parts throughout the several views.

A is the base-plate of a sewing-machine and is provided withdownwardlyeprojecting lugs A' A2, having bearings AsAirtherein for supporting a part to be described hereinafter.

B is an oscillatory-shuttlecarrier driver mounted on a pivot B4 on the base-plate A, provided at its upper end with a transverselyprojecting arm B' to support a shuttle-car-- rier, and terminating at its lower end in bifurcations B2, having transverse bearings B3 therein.

B5 is a bushing, B6 a bushing-retaining screw, and B7 a set-screw, which together serve to retain the oscillatory shuttle-carrier ldriver adjustably on its supporting-pivot B.

C is a gimbal-ring mounted by means of trunnions C thereon in the bearings B3 in the shuttle-carrier driver B.

D isa driving-shaft passing through theV opening C2 in the gimbalLring C and mounted in bearings As A4 in the lugs A A2. v

E is a collar fast to the driving-shaft D, havingan inclined driving-face E thereon, which is in' a plane oblique to the longitudinal axis of the driving-shaft D, whereby the ad jacent face C3 of said gimbal-ring is held sub-v stantially parallel to and in contact with the inclined end E of such collar E.

E2 is a shuttle-carrier of any desired form and construction, secured to or integral with a shuttle-.carrier-driver arm B.

F is a wrist-wheel fast tothe driving-shaft D and provided with a wrist-pin F. u

F2 is an eccentric-rod connecting the wrist K pin F' of the wrist-wheel F with anleccentric (not shown) on the main shaft (also not shown) of the machine.

Each rotation by the driving-shaft D of the collar E, acting upon and through the gimbalring C, will drive the shuttle-carrier E2 and its shuttle (not shown) through a complete oscillation or back-and-forth movement, as indicated by the dotted double arrow in and as shown by Figs. 5 and 6.

What I claim as new, and desire to secure by Letters Patent, is-

In a shuttle-driving mechanism for sewingmachines, in combination, an oscillatory-shutt1e-carrier driver, a gimbal-ring mounted in bearings therein, a driving shaft.v passing through the gimbalring,'a collar-fast to the driving-shaft-having a driving-face thereon which is in a plane oblique to the longitudinal axisv of said driving-shaft, whereby the adjacent face of said gimbal-ring is held substantially parallel to, and in contact with, the inclined end of said collar, and means for. driving said shaft, substantially as and for the purpose specified. l

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

RICHARD F. LocKE, NELLIE BUNKEE. v

Se Fig. l 

